Abstract
Abstract 2 : 1 complexes of trimethylstibine sulfide (TMSS) with zinc(II), cadmium(II), mercury(II) and cobalt(II) halides were prepared. 1 : 1 complexes were also obtained with cadmium bromide and mercuric iodide. On the basis of infrared spectra, it was found that TMSS coordinates to the metal through the sulfur atom and that Hg(TMSS)I2 has a sulfur-bridged structure. The electronic spectral parameters of the tetrahedral Co(TMSS)2X2 (X=Cl, Br and I) complexes are quite close to those of trimethyl-phosphine and -arsine sulfide complexes. These results indicate that for Co–S interactions, polarizability of the thioxo ligand is more important than polarity.
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